Bacteria Testing
Test water-impacted materials and surfaces for harmful bacterial contamination after leaks and sewage losses.
Not all water damage is equal. A sewage backup or Category 3 ("black water") loss carries E. coli, coliforms, and other pathogens deep into flooring, drywall, and contents — and a surface that looks and smells clean after remediation can still harbor bacterial contamination that makes a space unsafe to occupy.
We test affected materials and surfaces directly, with laboratory culture and analysis that tells you definitively whether contamination remains. For property owners, remediation contractors, and insurance claims alike, it's the difference between assuming a space is safe and proving it. Bacteria testing runs $595–$895 depending on scope.
Why this testing matters
Sewage losses are health hazards
Category 3 water carries disease-causing organisms. Occupying an affected space before clearance risks genuine illness, especially for children and immunocompromised occupants.
Visual inspection isn't enough
Bacteria are invisible. Only sampling and laboratory culture can verify that cleanup actually removed the contamination.
Insurance documentation
Carriers processing water-loss claims want independent verification that affected areas were properly remediated — our clearance reports provide it.
Verify remediation quality
Post-cleanup testing holds the remediation to an objective standard before you close up walls and move furniture back.
Tenant turnover confidence
After a sewage event in a rental, documented clearance protects both the landlord and incoming tenants.
Published, predictable pricing
Bacteria testing runs $595–$895 depending on the number of samples and areas involved — scoped precisely in your free consultation.
What's included
- Assessment of the loss category and affected areas
- Surface swab sampling of impacted materials
- Water sampling where standing water is involved
- Laboratory culture and analysis at an accredited lab
- Clear pass/fail interpretation
- Clearance documentation for insurance and records
Our process
- 1
Loss assessment
We establish what happened — backup, overflow, or flood — and map which rooms and materials were in the water's path.
- 2
Targeted sampling
Swab and water samples are collected from representative affected surfaces with chain-of-custody handling.
- 3
Laboratory culture
An accredited laboratory cultures and quantifies bacterial indicators to determine whether contamination persists.
- 4
Clearance report
You receive a plain-language report: cleared for occupancy, or specific areas needing further remediation and re-testing.
Frequently asked questions
The remediation company says it's clean — why test?
Independent verification is the point. We have no stake in the remediation outcome, so our clearance carries weight with insurers, tenants, and buyers that a contractor's self-assessment can't.
How much does bacteria testing cost?
$595–$895 for most projects, depending on the number of samples and areas involved. We confirm the exact figure in a free consultation before any work begins.
How soon after a sewage backup should I test?
Testing typically happens after remediation, as clearance. If you're unsure whether an area was affected at all, pre-remediation sampling can also map the actual spread of contamination.